Missing data for RPL

In 2016, I registered for a PGDBM through an RPL process (RPL unit and admissions) of the institution and I was funded by my employer who was then the department of public works. I met all the requirements and received my qualification and in 2018 I was transferred to department of Transport and registered for an MBA degree through their bursary scheme. To advance in the department, I'm required to produce a letter from the institution that states that I was accepted for my initial qualification through the RPL process as per the RPL requirements: motivational letter, comprehensive and 3 x reference letters to meet and translation the PoE to the entry requirements of NQF 6. This morning for over an hour, I called Durban, Cape Town, East London and different responses are issued.1. The institution has no records of my PoE nor letter as it doesn't keep records after 5 years 2. I must refer to the acceptance letter which bears reference to the RPL, 3. I must contact student services 4. I must contact student advisors 5. I must visit the closest Mancosa branch. All these do not assist me at all. In 2020 my house burned and I lost all belongings and exxternal hard drive and laptop I.e. all work documents including study documents were lost in the fire. Inspite of this, I went through and re registerd for my MBA degree as I couldn't quit due to the set back (Proof of this can be provided should the institution requests it). All I want is someone to intervene so that I can be acknowledged through a letter of a certificate for having met the minimum requirements through a well publicized RPL process of the institution. There needs to be training of how employees of mancosa can respond to queried because all these responses I received give a serious injury to the brand Mancosa. I am unwilling to accept that this information can't be provided to me now. I'm so disappointed